from pydantic import BaseModel


class Article(BaseModel):
    article_id: str
    title: str
    abstract: str
    keywords: str
    content: str
    city_name: str = ""
    city_id: str = ""
    building_id: str = ""
    article_type: str = ""


def main():
    pass


if __name__ == '__main__':
    main()
